Leibniz-Institut für Katalyse e. V. an der Universität Rostock, Albert-Einstein Straße 29a, 18059 Rostock (Germany), Fax: (+49) 381-1281-5132.
ChemSusChem. 2015 Jun 22;8(12):2031-4. doi: 10.1002/cssc.201500128. Epub 2015 Apr 14.
A bifunctional ammonium salt covalently bound to a polystyrene or silica support proved to be an efficient and recyclable catalyst for the solvent-free synthesis of cyclic carbonates from epoxides and CO2 . The catalyst can be easily recovered by simple filtration after the reaction and reused in up to 13 consecutive runs with retention of high activity and selectivity even at 90 °C. The scope and limitations of the reaction has been evaluated in terms of reaction conditions and substrate scope.
一种双功能季铵盐通过共价键连接到聚苯乙烯或硅胶载体上，被证明是一种高效且可回收的催化剂，可用于在无溶剂条件下由环氧化物和 CO2 合成环状碳酸酯。反应后，通过简单过滤即可轻松回收催化剂，并且在高达 90°C 的温度下，即使在 13 次连续使用后，仍能保持高活性和选择性。根据反应条件和底物范围，评估了该反应的适用范围和限制。
